allow concurrent aborts on active uploadParts() (#21229)

allow aborting on active uploads in progress, however fail these
uploads subsequently during commit phase and return appropriate errors

cmd/storage-datatypes.go

@@ -508,6 +508,7 @@ type RenamePartHandlerParams struct {
 	DstVolume   string `msg:"dv"`
 	DstFilePath string `msg:"dp"`
 	Meta        []byte `msg:"m"`
+	SkipParent  string `msg:"kp"`
 }
 
 // ReadAllHandlerParams are parameters for ReadAllHandler.